The first thing you need to do when moving a video into a folder is to click the ‘Select Videos’ option
Then click the video so they are selected.
Selected videos will have a green tick logo in the top right of the video
Then you can select the folder or create a new folder
If you’re creating a new folder you’ll need to give it a name and then click OK
Once that’s done, you should see your video moved into a new folder.